Go to appearance/menus – then you can select a range of Buddypress options to add to your nav bar for both logged in or logged out users. Click the Buddypress tab (below the pages tab). If you don’t have a nav bar then create a new one.

OK. Thank you. My big question is that since I have built the blog located at http://www.theworldsstage.net with several categories and many posts in each category, how do I transition the categories and corresponding posts to menus? It is clearly important that this transition to menus does Not affect existing content and its placement on the home page.
Thank you very much.